The price of Chrysler stock increased on 30% of the trading days over the past year.The price of Ford stock increased on 40% of the trading days over the past year.On 60% of the days when the price of Ford stock increased, the price of Ford stock increased as well.On what proportion of the days did both stocks increase in price?
A).18
B).12
C).36
D).24
E).70

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The Answer of The price of Chrysler stock increased on 30% of the trading days over the past year.The price of Ford stock increased on 40% of the trading days over the past year.On 60% of the days when the price of Ford stock increased, the price of Ford stock increased as well.On what proportion of the days did both stocks increase in price?
A).18
B).12
C).36
D).24
E).70

The Price of Chrysler Stock Increased on 30% of the Trading